I have only seen it done on an EG civic. They had to cut the inside of the doors a little farther back because the dash was bigger than the civic dash. You would just have to take out the stock dash, have somebody hold the integra dash in place and see if you can close the doors. You will probably not be able to close the doors so maybe draw a line on the doors where the integra dash meets the inside of the doors so that you can cut it with out having big gaps.